Rotary electric machines



Feb; 1966 e. H. RAWCLIFFE 3,233,159

ROTARY ELECTRIC MACHINES Filed June 13. 1961 22 Sheets-Sheet 1 N N N N N (a) l s s s s s N N N T I s 1 1 //VVE/V7Z3 Q AM Haw/Qt K BY nm m Md. Arrow/5Y5 Feb. 1, 1966 s. H. RAWCLIFFE ROTARY ELECTRIC MACHINES 22 Sheets-Sheet 5 Filed June 15, 1961 Fig.3.

I l l I l I SIS Fab, 1, 1966 G. H. RAWCLIFFE 3,233,159

ROTARY ELECTRIC MACHINES Filed June 13, 1961 22 Sheets-Sheet 4.

N N s 5 V N 5 FLg.5@) PARALLEL 12 UA/MODULATED 17 11 l8 BER/E5 v 7 MODULATED 17w) 1 18 v Lf //VVA/70A q m By Feb. 1, 1966 G. H. RAWCLIFFE 3,233,159

ROTARY ELECTRIC MACHINES Filed June 15, 1961 22 Sheets-Sheet 5 1 123.56) PARALZEL 140011117150 2 3 4 6 7 8 s /V s s 1/ s PARALLEL 7 r L s 9} 1m MODULATED LAP QM... vim-1 mm 111 mu) ATTORNEYS Feb. I, 1966 a. H. RAWCLIFFE 3,233,159

ROTARY ELECTRIC MACHINES Filed June 13, 1961 22 Sheets-Sheet 6 Fag 7(a) PARALLEL UNMODULA TED 87-23-45678 s-s-s-s-s 9 17 @42 71x 9 lk-Bl 1 15.709 SERIES MODULATED 8 2 3 4 5 6 7 8 N 5 N S N S "U ("111 W 1 V k //VVEA/7"0 J WEM M N m g,

ATTOZA Efg Feb. 1, 1966 G. H. RAWCLIFFE 3,233,159

ROTARY ELECTRIC MACHINES Filed June 13, 1961 22 Sheets-Sheet '7 1 86 SERIES UA/MODULATED I 8 2 3 '4 5 6 7 8 8 2 3 4 5 6 7 8 /v 5 1V 5 N 5 Kill I? WP LU $mm i w W M W Arrow/Em Feb. 1, 1966 G. H. JRAWCLIFFE 3,233,159

ROTARY ELECTRI C MACHINES Filed June 15. 1961 22 Sheets-Sheet 6 Fzg l) PARALLEL UNA/IODULATED NSNSNS/VS 22 H (g -17 7/ I8 Fig 9(6) SERIES MODULATED 3 4. 5 6 7 8 N 5 N S S N 5 N mwm Wm w HM I 5y I b W Mm Arroe/vsrg Feb. 1, 1966 I G. H. RAWCLIFFE 3,233,159

- ROTARY ELECTRIC MACHINES Filed June 13, 1961 22 SheetsSheet 9 Fig .10(&) PARALLEL UNMODULATED I 2 3 4 5 6 7 8 N S N S N S N S LEW V W F mgji SERIES MODULATED 2 a 4 5 a 7 8 5 N i i N s N 123% mm v 1 17 1 12 3! /M E/V7bg ATTOZ VEKS 1966 G. H. RAWCLIFFE 3,233,159

ROTARY ELECTRIC MACHINES Filed June 13, 1961 22 Sheets-Sheet 10 Fig Y 12 SER/ES- STAR Feb. 1, 1966 G. H. RAWCLIFFE 3,233,159

ROTARY ELECTRIC MACHINES Filed June 15, 1961 1 22 Sheets-Sheet 11 Feb. 1, 1966 Filed June 13, 1961 PHASE SEQUENCE A B, C PHASE BAND SEQUENCE G. H. RAWCLIFFE ROTARY ELECTRIC MACHINES 22 Sheets-Sheet 12 UNMOD. mm

+0 (3/?)POZE-P4/Kf SEQUENCE-X, X Z PHA sE A A, A

Fig 13(6) MOD. (3/) +2) EL IM. (30)!01f-P4/R5 PHASES A,B,C

SEQUENCE: X, Y, Z y +8 Y -19 71 a m M M Feb. 1, 1966 e. H. RAWCLIFFE ROTARY ELECTRIC MACHINES 22 Sheets-Sheet 15 Filed June 13. 1961 3*W, 53W M W Arrow/5g 1966 G. H. RAWCLIFFE 3,233,159

ROTARY' ELECTRIC MACHINES Filed June 15, 1961 22 Sheets-Sheet 1'7 /0 POLE CONNECT/0N5 8- POLL: 46 CONNECT/0N5 g 3 4 5 42 5435/0 0 41 I 7 I Fl CONNECT/0N5 5 8 9 IO 3 43 44 5 46 B-POLE 4 10" 34-4 CONNECT/0N5 WVEA/TO/Z kmw W W ATTORNfKg Feb. 1, 1966 cs. H. RAWCLIFFE 3,233,159

ROTARY ELECTRIC MACHINES Filed June 15, 1961 22 Sheets-Sheet 10 Fig .2

(A) IO-POLE C OIV/VE C 7'IOMS (B) 8-POLE CONNECT/0N5 /O-POL E CONNECT/0N5 S-POLE CONNECT/0M5 G. H. RAWCLIFFE ROTARY ELECTRIC MACHINES 22 Sheets-Sheet 19 UK mL 1E5 #8 Q R m I wwsw wm PW NOR O\ NW m Feb. 1, 1966 Filed June 13, 1961 Feb. 1, 1966 G. H. RAWCLIFFE ROTARY ELECTRIC MACHINES 22 Sheets-Sheet 20 Filed June 15, 1961 3 a 1 KW W T w 4 W weam EEVQYQ 309% WWMQ Uta mi IRE s3 0 WWTI I] m WWTIQ 11: T NWTIQ By E w mcww WWW HZ 5H xiv: kn 

20. THE ROTARY ELECTRIC MACHINE HAVING A COOPERATING ROTOR AND AN POLE-CHANGING THREE-PHASE WINDING FOR PROVIDING ALTERNATIVE POLE-NUMBERS IN A SELECTED NON-INTEGRAL RATIO, COMPRISING THREE PHASE-WINDINGS IDENTIFIED A, B, C, EACH PHASE-WINDING HAVING COILS CONNECTED TOGETHER FOR PROVIDING A FIRST NUMBER OF POLES, MEANS, INCLUDING NOT MORE THAN SIX SWITCHING LEADS BROUGHT OUT FROM SAID THREEPHASE WINDING, FOR CONNECTING TOGETHER SAID COILS IN AN ALTERNATIVE MANNER TO MODULATE THE RELATIVE AMPLITUDES OF SAID POLES ACCORDING TO THREE POLE-AMPLITUDE MODULATION WAVES APPLIED ONE TO EACH PHASE-WINDING IN SUBSTANTIALLY EQUAL SPACED-APART RELATIONSHIP, EACH SAID MODULATION WAVE SIMILARLY COMPRISING AT LEAST ONE CYCLE OF ALTERNATIVE POSITIVE AND NEGATIVE PARTS, SAID NEGATIVE PARTS CORRESPONDING TO THE CONNECTION OF SELECTED COILS IN REVERSE CURRENT-CARRYING SENSE RELATIVE TO THE COILS OF SAID POSITIVE PARTS, AND THE SEQUENCE OF SAID MODULATION WAVES, IDENTIFIED CORRESPONDINGLY AS THE PHASE-WINDING RELATED THERETO, BEING SELECTED FROM THE SEQUENCES A, B, C AND A, C, B. 